Improvement in excavators



@anni i '@miwi mail am pENJAMINYsLUssnn, :or-SIDNEY, onio.

Leners Patent No. 104,782, 'dated .nine 28, 187e..

IMPRovEMENT IN nxcAvA'roRs. -v

. 'Ihe Schedule referred to in these Letters Patentvand 'making Part ofthe same.

i To til whom it may concern:

Be it known `that I, BENJAMIN SLUssER, of Sidney,- in the county of'rShelby and State of Ohi o, have in' vented a new and useful Improvementin Excavators andI do hereby declare that the followingis' a full,

clear, and ezact description ofthe same, Yreferencebe` ing had`totheaccompanying drawingforming a part of this specification, in which-.lA Figure; is a longitudinal vertical section Figure 31s a detached planofthe scraper endof the apparatus, thefelastic apron being removed.

Thisinventionconsists, mainly, in a scraper placedv by vthedside of oneAof the rollers over which the endless apron runs, so as` to clear thesame of dirt, said `scraper being attached, 'atits4 ends, tothe boxes inwhich the rollers are mounted, so that, whenever the boxes, with therollcrsrare moved in pue direction .or the-otherin the frame, theScrapers ,are mover also to the same extent, andalway's preserve thesame position relative to-'the rollers. l

In the drawingn a a are the side picc'esof the' apron-frame. i

'b '11, the end rollers, overwhich the apron runs. c, the apron, made ofIndia rubber. d d, &c., Scrapers, attached transversely of the apron.

ec, 85o., rollers nio'unted on the inner sidesof the pieces a, for thesupport vof' the apron andscrapers.

4h h, boxes, in which are placed the journals ofthe smaller roller b, f

, These boxes are movable 'betrveen the branches c' c` of the forkedends of the'pieces a@ v `Slet-screws k k passing through cars l l,standing out from the side pieces a, bear against. the vends of theboxes h. Onturniug the set-screws k forward, the boxes h. areprcssedoutward, and the apron tightened; hence the boxes and screws are alwaysin contact.'

The scraper is shown at m. It is placed close beside the roller 11, withits ends in the boxes h, and keeps the rolle. always clear.

'Ilie scraper-moves with the boxes, and always preserves the samerelative position to the roller b.

Holes are cnt in the apron, and aps u attachedover the holes. rIhe flapshang down when passing along ytheuuder side of the'apron, and allow the'dirt cleaned from the rollers vby the fscrapers lto fall through.

:The shaft o of the larger roller b extends beyond each of the sidepieces a, and is braced by stays fr r,

anflb'cars pinions s`s at its ends, and collars t t, one

near each pinion,said collars being provided with arms, to which levers,for lifting the pinions out of gear, are

' attached.'

Having thus described my invention, Vhat I claim as new, and desire tosecure'by Let-v ters Patent, is

The scraper m,.when mounted in' the same slidingA boxes, 7i, in which'are placed the journals of the roller.`

b, in the manner described, and for the purpose of keeping the Scrapersin the. same relative position to"A the rollers.

` BENJAMIN SLUSSER Witnesses:

G. D.' LECKEY, C. ENGLIsH.

